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Finding the Fourth Proportional to 706,253, 974,629.14 and 388,301

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Solution

The fourth proportional to 706,253, 974,629.14 and 388,301 is: 535,855.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,253 : 974,629.14 = 388,301 : x
  2. Step 2: Convert to fraction form
    706,253/974,629.14 = 388,301/x
  3. Step 3: Cross multiply
    706,253x = 974,629.14 × 388,301
  4. Step 4: Simplify right side
    706,253x = 378,449,469,691.14
  5. Step 5: Solve for x
    x = 378,449,469,691.14/706,253
  6. Step 6: Final answer
    x = 535,855.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.